The call of Nathaniel is very similar. Jesus describes him as without guile. Guile is a word we do not hear often. It is the same word used to describe Satan in his deception of Eve. Satan uses words which confuse the situation and let Eve hear what she needs to hear – she will not die. This very subtly shifts the focus away from the truly awe-filled consequence of disobedience - separation from God and loss of eternal life; to mere physical life. Guile helps others deceive themselves into making bad choices. Guile is the opposite of the modern value of transparency. The bottom line is that people who deliberately deceive or manipulate others - for example political people, cannot become deeply spiritual people. This is a great challenge to us in the Church as we have to try and work together as spiritual people in what is essentially a political organization.
2. God reveals Himself to holy people
God revealed Himself to Samuel, Nathaniel and the Apostle Paul because they were already holy men. This is not rocket science. Over and over we are told God is holy. That which is holy cannot be around that which is unholy. Paul is explaining that or bodies are to be a temple for God in the form of the Holy Spirit. The examples of John the Baptist and Jesus purifying themselves through testing in the wilderness before engauging in ministry teach us how important holiness is.